JP2000129634A - Channel block for drainable pavement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a channel block capable of easily constructing drainable paving structure capable of efficiently draining seepage water infiltrating a drainable pavement section in response to the necessity in the future. SOLUTION: A channel block is so constituted that it is laid along an edge part of a drainable pavement section and is used for draining seepage water in the drainable pavement section. In an upper angle part facing to the end face of an edge part of the drainable pavement section in a block main body 7 providing a channel 9 in the longitudinal direction, a draining blind bore 22 for forming a drain hole connected to the channel 9 to drain seepage water out is provided. The draining blind bore 22 is provided from the outside of the block main body 7 by avoiding the arrangement of the block main body, and the drain hole is formed by breaking the bottom part 26 having no reinforcing bar in the draining blind bore 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pavement structure capable of efficiently draining permeated water that has penetrated a drainage pavement portion, and to a waterway block that can be easily constructed as needed in the future. is there.

[0002]

2. Description of the Related Art An example of a conventional road drainage structure is as follows.
As shown in FIG. 27, upper portions of both end portions of the opposed side walls a, a are connected to each other by connecting beams b, b, and a grating (not shown) can be installed in an opening c between the connecting beams. A drainage channel f is constructed by using a precast concrete channel block d having a gate shape with an open lower end, and laying a channel e between the side walls a, a of the channel block d in a communicating state. As shown by the arrows, the rainwater flows into the drainage channel f through the grating.

However, with such a drainage structure, although the rainwater on the road surface g flows into the opening c sequentially, when the amount of rainfall per unit time is large, a water layer is formed on the road surface g. There was a problem of causing a slip accident of a car.

Therefore, in recent years, a drainage pavement structure in which rainwater is permeated into a pavement portion and the permeated water flows into a drainage channel has been proposed.

[0005] Such a drainage pavement structure may be constructed simultaneously with the road pavement depending on the traffic conditions of the road, etc., but the existing pavement portion provided with the waterway is replaced with the pavement according to the traffic volume of the road. It may be necessary to change to a drainage pavement in the future.

[0006] One example of a conventional construction method for changing the existing pavement state to the drainage pavement structure described above is shown in FIG.
As shown in FIG. 8, after a required portion of the upper corner portion j of the waterway block d is drilled to form a drainage hole k communicating with the waterway e, an unformed portion formed of a normal asphalt pavement portion or a concrete pavement portion is formed. The end face p of the edge portion of the drainable pavement portion n provided on the permeable base m with a required thickness is brought into contact with the upper corner portion j, and as shown by an arrow in FIG. The upper surface q of the base m by penetrating the pavement part n
Is allowed to flow down on the upper surface q and flow into the drainage channel f.

[0007]

However, when a drain hole k is drilled in a relatively thick corner portion j above the waterway block d, it is difficult to drill the drain hole k.
Was easy to crack. In addition, since the state of the reinforcing bar inside the waterway block is not known from the outside, there is a possibility that the reinforcing bar may be cut with a drill and the strength of the block may be reduced. The corner j was more easily broken. As described above, it is extremely difficult to accurately and easily provide the drainage hole without damaging the block when the above-described construction method involving the post-processing of the drainage hole is used.

[0008] Therefore, in order to avoid such a problem, the existing channel block is partially replaced with a channel block provided with a drainage channel, or the channel block is installed. It was also done to install drainage blocks on the upper part of the building, but such replacement of waterway blocks and installation of drainage blocks became extensive, requiring a lot of time and cost. There was a problem that led to a rise.

If the drainage hole k is to be forcibly formed by drilling, the drainage hole k should be formed as shown in FIG. 29, for example, in order to prevent the corner portion j from being damaged as much as possible. It has to be provided at a lower position. However, when the drainage hole k is provided in such a manner as described below, the water that has penetrated the drainage pavement part n and has reached the upper surface q of the base m is allowed to flow down on the upper surface q to drain the waterway block. Due to the necessity of inflow into the channel f, at least at a portion close to the upper corner portion j of the waterway block, it is necessary to construct the drainage pavement n thickly, which causes a problem of increasing construction cost. Also, as a result of lowering the position of the drain hole k, if the level of the water flowing through the drain channel f of the channel block is high as shown by the dashed line r in FIG. There was also a risk of seeping out on the upper surface of the pavement part n.

The present invention has been developed in view of such a problem, and when the construction of a drainage pavement structure is required in the future, it can be performed reliably and efficiently at a relatively low cost. It is an object of the present invention to provide a waterway block for drainage pavement capable of responding to the above.

[0011]

In order to solve the above-mentioned problems, the present invention employs the following means. That is, the waterway block for drainage pavement according to the present invention (hereinafter referred to as a waterway block) is a waterway block that is laid along the edge of the drainage pavement and is used to drain the permeated water of the drainage pavement. A drain hole for communicating with the water channel and discharging the permeated water is formed in an upper corner portion of the block main body provided with the water channel in the length direction and facing the end surface of the edge portion of the drainage pavement portion. A blind hole with a bottom for draining from the outer surface side of the upper corner portion of the block body and / or the inner surface side of the upper corner portion while avoiding reinforcement of the block body. The drainage hole can be formed by breaking a bottom portion of the hole where no reinforcing bar is present.

In the waterway block, it is preferable that the drainage blind hole is provided so as to be open on an outer surface of the upper corner portion of the block main body, and a bottom surface thereof is close to an inner side surface of the upper corner portion of the block main body. . Alternatively, the drainage blind hole is opened on the inner surface of the upper corner portion of the block body,
In addition, the bottom surface may be close to the outer surface of the upper corner portion of the block body.

Another aspect of the waterway block according to the present invention is:
A waterway block laid along the edge of the drainage pavement and used to drain the seepage water of the drainage pavement, wherein the block body is provided with a waterway in the length direction.
The outer surface of the upper corner portion facing the end surface of the edge portion of the drainage pavement portion is used as a water receiving surface, and the water receiving surface side end of the through hole that is open at the water receiving surface and communicates with the water channel of the waterway block. ,
By closing the cover with a removable lid, a bottomed drainage blind hole is formed, and by removing the lid, it is possible to form a drainage hole communicating with the water channel and discharging the permeated water. It is characterized by having done.

As the block main body constituting the waterway block, a gate body having an open lower end formed by connecting upper portions of opposing side walls with connecting beams is used, and the drainage portion is provided at a portion where the connecting beams exist. A blind hole may be provided. In addition, a block body having a water channel that is open at both ends and closed in the circumferential direction can be used, and a block body as a U-shaped groove can also be used.

In each of the block main bodies, a water collecting groove is provided on the water receiving surface of the block main body so as to be continuous in the longitudinal direction and open at both ends of the block main body. It is preferable that the drainage blind hole is set so that the aggregate does not enter and block the water collecting groove, and the drainage hole can be formed in a state communicating with a required portion in the length direction of the water collecting groove. Good.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] In FIGS. 1 to 3, a waterway block 1 according to the present invention comprises a drainage pavement 2 as shown in FIGS.
Drainage pavement structure 3
And a gate body 7 having a gate shape with an open lower end formed by connecting upper portions of both end portions of left and right side walls 5 and 5 facing each other at a required interval with a connecting beam 6. A water channel 9 is formed between the walls 5 and 5. In the present embodiment, the upper surface 10 of the block body 7 is inclined from one side wall 5a to the other side wall 5b. Further, the lower portions of the left and right side walls 5, 5 may be connected to each other by reinforcing beams as appropriate.

Then, one side wall 5a of the block body 7
The outer surface of the upper corner portion 8 facing the end surface 11 (FIG. 7) of the edge portion of the drainage pavement 2 is a water receiving surface 12 that is continuous in the length direction of the block body 7. The vertical width of the water receiving surface 12 is set to, for example, about 10 cm.

Above and below the lower end of the water receiving surface 12, water collecting grooves 13, 13 are provided so as to open at both ends of the block body 7. The width of the water collecting groove 13 is set to, for example, about 20 mm so that aggregate for pavement does not enter and block the water collecting groove. Also, both end portions 1 of the block body 7 where the connecting beams 6 and 6 are present.
A drain hole forming recess 16 (FIG. 2) is disposed on the water receiving surface before and after the drain holes 5 and 15.
6 designates the upper and lower water collecting grooves 13, 13
It is provided in connection with a recess 20 having a bottom surface 19 flush with the surfaces 7 and 17.

On the bottom surface of these drainage hole forming recesses 16, tapered drainage holes 21 which extend obliquely downward and communicate with the water channel 9 and have a circular cross section and become thinner toward the lower end (FIGS. 6 to 7). Are formed so as to avoid the arrangement of the reinforcing bar of the block body 7. As shown in FIG. 3, the bottom surface 23 of the blind hole 22 for drainage is close to the inner side surface 25 of the upper corner portion of the block main body. The drain hole 21 can be formed by breaking the drain hole in the axial direction. The lower edge of the upper edge of the drain hole 21 formed in this way (that is, the lower edge of the drain edge of the blind hole 22 for drainage) 29 (FIGS. 2 and 7) is substantially formed on the lower edge of the bottom surface of the concave portion 16 for forming the drain hole. It is better to match.

The waterway block 1, as shown in FIG.
The construction of the drainage pavement structure is laid along the edge of the pavement section 30 where the construction of the drainage pavement is planned in the future, and the required drainage channel 31 is constructed.

In order to construct the drainage channel 31 shown in FIG. 4 by using the waterway block 1 having such a configuration, it is necessary to prevent the pavement aggregate and the like from entering the blind hole 22 for drainage. Therefore, the upper end opening of the blind hole 22 for drainage is
As shown in FIG. 5, it is preferable to close the lid with a removable lid 33.

When it is necessary to construct the drainage pavement structure 3 in the future, the existing pavement portion 30 shown in FIG.
After removing the cover 33 and removing the lid 33, a bar-shaped tool is inserted into the blind hole 22 for drainage to break through the bottom portion 26 of the blind hole, thereby forming the drainage hole 21 as shown in FIGS. The size of the drain hole 21 is set to, for example, an upper end diameter of 40 mm and a lower end diameter of 20 mm.

As shown in FIG. 8, in order to prevent the pavement aggregate or the like from entering the drain hole 21 formed as described above, as shown in FIG.
It is preferable that a filter member 35 such as a mesh plate or a perforated plate is fitted into the drain hole forming recess 16 and fixed to the bottom surface of the recess. Alternatively, as shown by a dashed line in FIG.
A filter member 35 such as a perforated plate provided with a large number of
It is preferable to fix to the block outer surface so as to cover the drain hole 21 and the upper and lower water collecting grooves 13. When an adhesive tape is used as the fixing means, it is preferable that the filter member 35 can be easily replaced when it is clogged.

The drainage pavement (road gradient is about 2%) 2
As shown in FIGS. 6 and 7, the block body 7 is provided with a predetermined thickness on a water-impermeable base 36 made of a normal asphalt pavement or concrete pavement, and the upper surface 37 of the block body 7 is inclined. To the upper surface 10. The thickness of the end of the drainage pavement 2 is set substantially equal to the vertical width of the water receiving surface 12. When the drainage pavement 2 is thus provided, the groove width of the water collecting groove 13 is 20 mm.
Since it is set to the degree, it is possible to prevent the possibility that the aggregate enters the water collecting groove 13 to block the water collecting groove 13 and maintain good water collecting.

The drainage pavement 2 is provided with the water receiving surface 12.
Although the entire width may be formed by the thickness of the upper and lower widths, in the present embodiment, in consideration of the construction economy of the drainage pavement portion, as shown in FIGS. Only the adjacent portion 39 is provided with the thickness of the upper and lower widths of the water receiving surface (for example, 10 c
m), and the other portions are formed thinner. In FIG. 6, reference numeral 40 denotes a pedestrian road boundary block.

However, when there is rain on the drainage pavement 2, the rainwater penetrates the drainage pavement 2 and reaches the upper surface 41 of the base 36. Flow down to block 1. The water that has reached the water receiving surface 12 directly flows into the drain hole 21 or flows into the water collecting groove 13, flows along the water collecting groove 13, and flows into the drain hole 21. At this time, as described above, the water collecting groove 1
Since the groove width of No. 3 is set to be small enough that the aggregate does not enter, good water collection is permanently secured. Since the water collecting groove 13 has both ends open at both ends of the block main body 7, as shown in FIG. 9, the water collecting grooves 1 provided in the adjacent waterway blocks 1, 1 are provided.
3 and 13 are in communication with each other. Therefore, even if the amount of permeated water in a certain channel block is large, the permeated water can flow through the communicating water collecting groove 13 and flow into the drain hole 21 of another channel block, so that the overall efficiency is high. It will be possible to achieve effective drainage. In FIGS. 6 and 7, arrows indicate the state of water penetration and the state of infiltration of water into the drainage channel 31.

[Second Embodiment] FIGS. 10 to 12 show another embodiment of the waterway block 1 according to the present invention, in a state adjacent to the drainage pavement 2 as shown in FIGS. The drainage pavement structure 3 is constructed by being laid.

More specifically, the waterway block 1 has a block main body 7 having a substantially square cross-sectional shape, and is formed with a circular waterway 9 extending in the longitudinal direction and opening at both ends. The outer surface of the upper corner portion 8 of the block main body 7 facing the end surface of the edge portion of the drainage pavement portion 2 is a water receiving surface 12. The vertical width of the water receiving surface 12 is set to, for example, about 10 cm.

Water collecting grooves 13 are provided above and below the lower end of the water receiving surface 12 so as to open at both ends of the block body 7. The width of the water collecting groove 13 is set to, for example, about 20 mm so that aggregate for pavement does not enter and block the water collecting groove. The water receiving surface 12 of the block main body 7 is provided with a drain hole forming recess 16 in parallel. The drain hole forming recess 16 forms the upper and lower water collecting grooves 13 with the bottom surfaces 17 and 17 thereof. One bottom 19
Are provided by being connected by a concave portion 20 having the same.

On the bottom surface of each of the drainage hole forming recesses 16, a tapered drainage hole 21 extending obliquely downward and communicating with the water channel 9, having a circular cross section and becoming thinner toward the lower end (FIGS. 15 to 16). Drainage blind hole 22 for forming a bottom
However, it is provided so as not to arrange the reinforcing bar of the block body 7. As shown in FIG. 12, the bottom surface 23 of the blind hole 22 for drainage is close to the inner side surface 25 of the upper corner portion of the block body.
Can be formed in the axial direction of the blind hole for drainage to form the drainage hole 21. The drain hole 21 thus formed
The lower end of the hole edge of the upper end opening (that is, the lower end of the hole edge of the drain blind hole 22) 29 (FIGS. 11 and 16) is
It is good to make it substantially coincide with the lower edge of the bottom surface of No. 6.

As shown in FIG. 13, the waterway block 1 is laid along an edge portion of a pavement portion 30 in which a drainage pavement structure is scheduled to be constructed in the future.
To build.

In order to construct the drainage channel 31 shown in FIG.
In order to prevent the pavement aggregate or the like from entering the drainage blind hole 22, the upper end opening of the drainage blind hole 22 is closed with a removable lid 33 as shown in FIGS. It is better to keep it covered.

When it becomes necessary to construct the drainable pavement structure 3 in the future, the existing pavement 3 shown in FIG.
After removing the lid 0 and removing the lid 33, a bar-shaped tool is inserted into the blind hole 22 for drainage to break through the bottom portion 26 of the blind hole to form the drainage hole 21 as shown in FIGS. . The size of the drain hole 21 is set to, for example, an upper end diameter of 40 mm and a lower end diameter of 20 mm.

As shown in FIG. 17, a filter member 35 such as a mesh plate or a perforated plate is attached to the drain hole 21 to prevent the pavement aggregate from entering the drain hole 21 formed as described above. It is preferable to fit into the recess 16 and fix it to the bottom of the recess. Alternatively, as shown by a dashed line in FIG. 17, a filter member 35 such as a perforated plate provided with a large number of filter holes 34 is provided.
Is preferably fixed to the outer surface of the block so as to cover the drain hole 21 and the upper and lower water collecting grooves 13. When an adhesive tape is used as the fixing means, it is preferable that the filter member 35 can be easily replaced when it is clogged.

The drainage pavement (road gradient is about 2%) 2
As shown in FIGS. 15 and 16, a water-impermeable base 3 made of a normal asphalt pavement or a concrete pavement is used.
The block body 7 is provided with a predetermined thickness so as to be superimposed on the block body 6 so that the upper surface 37 is continuous with the inclined upper surface 38 of the block body 7. The thickness of the end of the drainage pavement 2 is set substantially equal to the vertical width of the water receiving surface 12. When the drainage pavement 2 is thus provided, the groove width of the water collecting groove 13 is 20 mm.
Since it is set to the degree, it is possible to prevent the possibility that the aggregate enters the water collecting groove 13 to block the water collecting groove 13 and maintain good water collecting.

The drainage pavement 2 is provided with the water receiving surface 12.
The entire width may be formed by the thickness of the upper and lower widths, but in the present embodiment, in consideration of the construction economy of the drainage pavement, as shown in FIGS. Only the adjacent portion 39 is provided with the thickness of the vertical width of the water receiving surface (for example,
cm), and the other portions are formed thinner. In FIG. 15, reference numeral 40 denotes a sidewalk boundary block.

However, when there is rain on the drainable pavement 2, the rainwater penetrates the drainage pavement 2 and reaches the upper surface 41 of the base 36. Flow down to block 1. The water that has reached the water receiving surface 12 directly flows into the drain hole 21 or flows into the water collecting groove 13, flows along the water collecting groove 13, and flows into the drain hole 21. At this time, as described above, the water collecting groove 1
Since the groove width of No. 3 is set to be small enough that the aggregate does not enter, good water collection is permanently secured. Also, since the water collecting groove 13 is open at both ends of the block body 7 at both ends, as shown in FIG.
Water collecting groove 1 provided in adjacent waterway blocks 1 and 1
3 and 13 are in communication with each other. Therefore, even if the amount of permeated water in a certain channel block is large, the permeated water can flow through the communicating water collecting groove 13 and flow into the drain hole 21 of another channel block, so that the overall efficiency is high. It will be possible to achieve effective drainage. 15 and 16
In the figure, arrows indicate the state of water penetration and the state of infiltration of water into the drainage channel 31.

[Other Embodiments] The drainage blind hole 22 forming the drainage hole 21 is the same as described above as long as it forms a drainage hole that allows the permeated water of the drainable pavement 2 to flow into the water channel 9. It is not limited to a circular hole having a horizontal cross section, and may be formed into a hole having an elliptical cross section or another form. The hole may be a hole having the same diameter over the entire length in addition to the tapered hole as described above. Further, the hole diameter may change in the length direction.

The block main body is, in addition to the above,
It may be formed with a U-shaped groove.

When the block main body has a gate shape, as shown in FIG. 1, in order to minimize the strength of the block main body, the drainage blind hole 2 is formed at the portion where the connecting beam 6 exists.
2 is preferably provided, but if there is no problem in the strength of the block body, a blind hole for drainage may be provided between the connecting beams.

The drainage blind hole 22 is preferably provided on the outer surface side of the block body 7 so as to be open as shown in FIGS. 3 and 12, for example, as shown in FIGS. It may be provided from the inside of the main body 7.
In this case, the drain hole is formed by breaking the blind hole bottom portion 26 having no reinforcing bar from the outside of the block body 7. For this purpose, it is preferable to provide a mark on the outer surface of the block main body to clearly indicate the position of the blind hole bottom portion. The drainage blind holes 22 are provided from the outer side and the inner side of the upper corner portion of the block body 7, as shown in FIGS.
The blind hole bottom portion 26 may be located in the middle of the formed drainage hole.

The waterway block according to the present invention is shown in FIG.
24, the through holes 41 provided at the time of manufacture
May be configured to have a drainage blind hole 22 formed by closing the end of the cover with a removable lid 42. In this case, by removing the lid 42, a drain hole communicating with the water channel 9 can be formed.

The water receiving surface 12 of the block body facing the end face of the drainage pavement is formed as a vertical surface as shown in FIGS. 1 and 10, and for example, as shown in FIGS. In some cases, the inclined surface 42 is formed as a bent surface including a vertical surface 43 and the inclined surface 42 is provided with a blind hole 22 for drainage.

[0044]

The present invention has the following excellent effects. According to the present invention, a blind hole for drainage capable of forming a drainage hole for draining permeated water of the drainable pavement portion is provided at an upper corner portion of the block body facing the end surface of the edge portion of the drainage pavement portion. Therefore, when it is necessary to construct a drainage pavement part in the future while laying in the same manner as a conventional waterway block to form a waterway, if the need arises to construct a drainage pavement, the bottom of the drainage blind hole is broken or the lid is By removing and forming the drain hole, the drainage pavement structure can be immediately constructed. This drainage hole is formed because the drainage blind hole is provided avoiding the reinforcement of the block main body, so that the reinforcing bar does not become an obstacle as in the past, and the damage such as cracking of the block main body is prevented. Thus, the drain holes can be easily and reliably formed while avoiding a decrease in the strength of the block body. Therefore, as compared with the conventional case where the waterway block is replaced or the drainage block is mounted and the drainage pavement structure is constructed, the construction labor can be greatly reduced and the construction cost can be greatly reduced. It will be.

In particular, when the block main body is formed in a gate shape, by adopting a configuration in which a blind hole for drain is provided in a connecting beam portion connecting both side walls, a blind hole for drain can be formed in a thick portion, and accordingly, In addition, there is an advantage that the drainage blind hole can be more reliably formed without lowering the block strength.

A water collecting groove is provided on a water receiving surface of the block main body facing an end surface of an edge portion of the drainage pavement portion so as to be continuous in its length direction and open at both ends of the block main body,
When the drainage hole is formed in a state of communicating with a required portion in the length direction of the water collecting groove, when the blocks are laid in a connected state, the water collecting grooves of adjacent waterway blocks can be connected, Therefore, the collected water can be moved in the length direction of the water collecting groove, and the collected permeated water can be efficiently drained into the water channel. By setting the groove width of the water collecting groove to such an extent that the pavement aggregate does not enter and block the water collecting groove, it is possible to permanently secure good drainage.

By providing a blind hole for drainage in the block body and forming a drainage hole by breaking the bottom portion, the drainage hole can be formed in the future as described above. By shipping the block in a broken state, it can be used as it is for drainage pavement at the construction site. Therefore, as long as one kind of waterway block with drainage blind holes is manufactured,
The choice of application can be made depending on when the bottom of the drainage hole is broken. As a result, compared to the case where two types of blocks, i.e., a waterway block having a blind hole for drainage and a block having a penetrated drainage hole, are manufactured, economical efficiency such as easier production management and inventory management is obtained.

In a waterway block provided with a drainage blind hole that forms a drainage hole by breaking a bottom portion, a required waterway block can be completed simultaneously with its manufacture, and a through hole provided in the block body is removed. There is an advantage that post-treatment such as lid closing is not required, as in a channel block closed with a possible lid.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a waterway block according to the present invention.

FIG. 2 is a partial perspective view of the same.

FIG. 3 is a sectional view showing the blind hole for drainage.

FIG. 4 is a sectional view showing a normal construction state using the waterway block according to the present invention.

FIG. 5 is a perspective view showing a state where an upper end of a drainage blind hole is closed with a lid.

FIG. 6 is a cross-sectional view showing a pavement structure constructed using the waterway block according to the present invention.

FIG. 7 is a partially enlarged cross-sectional view thereof.

FIG. 8 is a perspective view showing a state where the upper end of the drain hole is covered with a filter member.

FIG. 9 is a partial side view showing a connection part between waterway blocks according to the present invention.

FIG. 10 is a perspective view showing another embodiment of the waterway block according to the present invention.

FIG. 11 is a partially enlarged perspective view of FIG.

FIG. 12 is a sectional view showing the drainage blind hole.

13 is a sectional view showing a pavement structure constructed using the waterway block shown in FIG.

FIG. 14 is a perspective view showing a state in which the upper end of the drainage blind hole shown in FIG. 10 is closed with a lid.

FIG. 15 is a sectional view showing a drainage pavement structure constructed using the waterway block shown in FIG. 10;

FIG. 16 is a partially enlarged cross-sectional view thereof.

FIG. 17 is a perspective view showing a state where the upper end of the drain hole is covered with a filter member.

FIG. 18 is a partial side view showing a connecting portion between the waterway blocks according to FIG. 10;

FIG. 19 is a partial cross-sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 20 is a partial sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 21 is a partial sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 22 is a partial sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 23 is a partial cross-sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 24 is a partial sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 25 is a partial cross-sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 26 is a partial cross-sectional view showing another embodiment of the waterway block according to the present invention.

FIG. 27 is a perspective view showing a conventional pavement structure using a waterway block.

FIG. 28 is a sectional view showing a drainage pavement structure formed by using the waterway block used in FIG. 27;

FIG. 29 is a cross-sectional view illustrating a problem of the drainage pavement structure formed by using the waterway block used in FIG. 27.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterway block 2 Drainable pavement part 3 Drainable pavement structure 5 Side wall 6 Connecting beam 7 Block body 9 Waterway 12 Water receiving surface 13 Water collecting groove 21 Drainage hole 22 Drainage hole for drainage

Claims (8)

[Claims] 1. A waterway block laid along an edge of a drainable pavement and used for draining permeated water of the drainage pavement, wherein the block body is provided with a waterway in a longitudinal direction. In the upper corner portion facing the end surface of the edge portion of the drainage pavement portion, a bottomed drain blind hole for forming a drain hole for discharging the permeated water in communication with the water channel,
A bottom portion of the blind hole for drainage, in which no reinforcing bar is provided, which is recessed from an outer surface side of the upper corner portion of the block body and / or an inner surface side of the upper corner portion so as to avoid reinforcement of the block body. A drainage pavement waterway block, characterized in that the drainage hole can be formed by breaking the drainage pavement. 2. A waterway block laid along an edge of a drainable pavement and used for draining permeated water of the drainage pavement, comprising a block body provided with a waterway in a longitudinal direction. An outer surface of an upper corner portion facing an end surface of an edge portion of the drainage pavement portion, serving as a water receiving surface, and an end on a water receiving surface side of a through hole that is opened at the water receiving surface and communicates with a water channel of the waterway block. Is closed with a removable lid to form a blind hole with a bottom, and by removing the lid, a drain hole communicating with the water channel and discharging the permeated water is formed. A drainage pavement waterway block characterized by being made possible. 3. The block body has a gate shape with an open lower end formed by connecting upper portions of opposing side walls with a connecting beam, and the drainage blind hole is provided at a portion where the connecting beam exists. The waterway block for drainable pavement according to claim 1 or 2, wherein: 4. The waterway block for drainable pavement according to claim 1, wherein the block body has a waterway which is open at both ends and closed in the circumferential direction. 5. The waterway block for drainable pavement according to claim 1, wherein the block body is a U-shaped groove. 6. The blind hole for drainage is opened on an outer surface of the upper corner portion of the block main body, and a bottom surface thereof is close to an inner surface of the upper corner portion of the block main body. The waterway block for drainage pavement according to claim 1. 7. The blind hole for drainage is opened on the inner side surface of the upper corner portion of the block main body, and the bottom surface is made close to the outer side surface of the upper corner portion of the block main body. The waterway block for drainage pavement according to claim 1. 8. An outer surface of an upper corner portion of the block main body facing an end surface of an edge portion of the drainage pavement portion is a water receiving surface, and is continuous with the water receiving surface in its length direction and both ends of the block main body. A water collecting groove is provided so as to be opened at the part, and the groove width of the water collecting groove is set so that the aggregate for pavement does not enter and does not block the water collecting groove. The drainage blind pavement block according to any one of claims 1 to 7, wherein the drainage blind hole is provided so that the drainage hole can be formed in a state communicating with the portion.